Vacuum cleaner



FIG. 1 is a front elevational view of a vacuum cleaner showing our newdesign;

FIG. 2 is a side elevational view thereof, the opposite side being amirror image;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is an enlarged front partial perspective view thereof; and

FIG. 7 is an enlarged rear partial perspective view thereof.

The ornamental design for a vacuum cleaner, as shown and described.